Rollerball pen draws conductive circuits

Laura sez, "Circuit Scribe is a rollerball pen that draws with conductive silver ink-it makes building circuits as easy as doodling. Electroninks just launched a Kickstarter to fund the pen. They make low-cost, high-quality electronics for STEM education. The pen could replace breadboards and lets you prototype instantly. The pen only costs $20 plus they're offering kits for kids and Makers. You can use it with Makey Makey and Arduino. It's pretty cool, check out the video! I love their utilitarian vibe."